high voltage test equipment Anyone doing pat testing wants to ensure they can safely test equipment especially high voltage equipment. There are special devices available to help you test your equipment known as high voltage test equipment and this type of equipment takes into consideration the safety of the tester as well as the data integrity of the testing equipment. It's a worthwhile exercise to take the time to carefully source out the best test equipment available. There are many companies that sell high voltage test equipment along with their regular pat testing equipment. Some companies even sell software and offer equipment calibration services, too.